Rotary refrigerating machine.



C. ORB.

ROTARY REFRIGERATING MACHINE.

APPLICATION FILED Nov.2s. Isn.

l 9281,82@ v Patented Oct. 15, 1918` FI'QI.

llll/1111111111411` Inventor: Clark Orr,

bg wm His flttofrw eg 1ra-,eraan Parana anno.

CLARK ORR,IOF- FORT WAYNE, INDIANA,- AssIGNORTO GENERAL ELEc'rRIc COMPANY, A CORPORATION OFNEWYORK. e

' V:ROTARY REFRIGRATINGj MACHINE.

Specincation of Letters Patent.

p Patented @eta 11.5, i918.,

"To all whom t may concern;

Be it known that LCLARK 0R11, a citizen of the United States, residing vat Fort Wayne,-in the county of Allen, State ojf ln diana, have invented certain new and useful Improvements in ARotary Refrigerating- Machines, of which the following is a specication.

My present'invention relates to rotary refrigerating machines of the type inv which a suitable material, such as sulfur-dioxid, in the form of a saturatedor approximately saturated vapor or gas is confined in a vhermetically sealed container, and is in the compressor portion of the container acted upon mechanically to cause it to liquefy and lose potential energy in the form of heat which is transmitted to and dissipated by a medium Outside that portion of the container, in order that the material within the container may e'ect refrigeration of a medium surrounding another or refrigerator portion of the container by absorbing heat therefrom as it vaporizes within that portion of the container.

the container also has a lubricant therein for lubricating the working parts of the refrigerating machine. Such a machine is described in the U. S. patent to Audi'ren &

singrn No. 1,155,780 dated oct. 15, 1915, and the U. S. patent to J. J. Wood, No. 1,164,245,da1ed Dee. 111, 1915.

rlhe refrigerator portion of the container vof such a machine contains a combinedA liquid and lubricant separatorn and my 1nvention has particularly to do with an improvement'in the construction of this portion of such a machine. This portion of the refrigerating machine contains not only liquid refrigerant, but a lu'brlcant as well,

and in the operation of such machines .as heretofore constructed, the liqu-1d"refr1ger= 'prising a tube having a nozzle and so mounted as to dip into the liquid adjacent the pethe refrigerant.

Besides the sulfur-dioxiol or similar material mentioned,l

riphery of the container to deiiect the same into the tube from which it is directed by the nozzle against the inside -surface of the container. DSuch a distribution of the refrigerating liquid breaks up the film of lubricant and facilitates the evaporation of Other features of novelty which charf acterlze my invention -are pointed out with p particularity in the claims annexed to and forming a part of this specification. For a better understanding of my invention, reference may be had to the following description .taken in connection with the accompanying drawing, in which Figure l is a sectional view through the refrigerator portion of the container of a refrigerating machine, showing the separator partly in section and embodying my invention; Fig. 2 is a View of Fig. l taken on the sectional line 2-2 l and looking in the direction of the arrows, and Fig. 3 is an end view of my agitator.

lReferring to the drawing, l is the refrigerator portion of the hermetically sealed container 'of a refrigerating machine which is connected by a hollow shaft 2` to'thecondenser portion of the machine. `Projecting into the portion l of the container is a hollowstationary shaft 3 on which is mounted the combined liquid and lubricant separator, which comprises a central casting 4, which provides a loose vsupporting bearing on the end of the hollow shaft 2, a passage 5 from the refrigerator end of the machine above the shaft 2 by which vapor from this end of the machine may pass downward and into the end of the hollow shaft, and a. passage 6 at the end of the hollow shaft by which lubricant may 'pass from a separator chamber 7 upwardly and flow into the end of the hollow shaft. The pipe 3 passes entirely through the casting 4 and discharges against the wall of the'condenserl. rlfhe casting Ll is secured to this pipe, as will be seen from Figs. ljand 2, whereby the separator i-s held stationary with this pipeu A cylindrical receiver 8A open at its top is mounted on the casting 41, the bottom of this vreceiver being formed by this casting. A'

smaller cylindrical receiver 9 is mounted within the receiverV 8 adyacent its forward wall, that is, that Wall towardwhich the Outer shell of the'container moves .as is' dicated bythe arrow in Fig. 2;," rrl l`lif e,

4 also forms the bottom of this receiver 9. A tube 'provides 'communicatiq'n between A the receiver 9 and the separator chamber 7.

nects the receiver 9 with the separating chamber 7, into this separating chamber where the lubricant and liquid refrigerant are separated by gravity, the liquid refrigl'erant being the heavier will settle att-he bottom while the oil will occupy the upper portion of the'chamber. Whenever the level of container 1.

the lubricant rises above the passage'tl it will be sucked back to the compressor through the hollow shaft 2. 1he overflow pipe 13 extends upwardly from ynear the bottom of the separating chamber 7', passes through the side wall of this chamber'so as todischarge liquid refrigerant against the wall of the A certain amount of liquid rei frigerant carried dowri by the-collector 1(4),

. finds its way down the outside of the re` `ceiver 9 into the receiver 8 fronrwhich it flows. by a distributing pipe 14 against the wal of the container 1. r1`he collector 10 dey scribed herein is covered by myv application,

Serial No. 204,315, tiled concurrently hereend ofthe tube, yis mounted so as to dipinto the liquid v.adj acent the periphery of the con-- Atairr. 1 to deflect the same into the tube 'which it is directed by the nozzle fro A with. 1n accordance with my inventioman agitator 15 Ycomprising a tube having a nozzle' 16, which may be formed by viiattenirlg the against the inside surface of the container.

"This -agitator is mounted on the receiver 8 to ythe rearof the collector 11 so ,that the end 17 of the tube,away v:from the flattened end 16,

deflects liquid from adjacent the periphery fof the containerinto the tube, from which -.it is discharged by the flattened end 16 in -a flat stream against the inside'surface of the container. 1n the operation `ofjsuch refrigerating machines as described above, the liquid refrigerant such as sulfur-dioxid is heavie'than the lubricant and therefore by the action of centrifugal force forms a layer the oil being lighter is formed as a-iilmon top of the sulfur-dioxid.. This iilm 'of oil is next-to the surface of the container whereas held outby centrifugal force and acts as a blanket retarding the evaporation of the sulur-dioXid. By using an agitator, suchas with-slots 12 and is lsame into said liquid Lesina() Vthat described,this film of oil which has passed the collector 11 is broken up, making it much easier for the sulfur-dioxid to evaporate, and thus the capacity ofthe' refrigerating machine at the lowertemperatures is materially increased. By the use of my agitator .1 have oundit possible to materially increase the heat absorption of such. a re-` frigerating machine.

1 desire it to be understood that my invention is not limited to the particular arrangement shown and described and is applicable to other forms of separators than' that described, and 1faim in the appended claims to cover vall moditications that do not ldepart from the spirit and scope of my invention.

What 1 claim as new and by Letters Patent oi' the lUnited States, is

1. 1n a refrigerating machine, the combination with arotatable container and separator therein, of anv agitator comprising a tube having a nozzle, mounted so as to dip into liquid adjacent the periphery of said container and so that said nozzle directs face of the container.

2. 1n a refrigerating machine, the combination with a rotatable container and separator therein, of an agitator comprising a tube having a nozzle, said agitator being so mounted that the end of said tube away from said nozzle dips into liquid adjacent the periphery ofsaid container to deecttheA tube 'from which it is di-l rected bv said nozzle against the inside surface of the container.

3. 1n a refrigerating machine, the combination with agrotatable container and sepa-4 rator therein, of an agitator, comprising al tubehaving'a flattenedv end, said agitator being mounted so as to dip into liquid adjacent the periphery of said container and so. that the attened end of saidtube directs liquidagainst the inside surface of the container. l v

4'. 1n a'refrigerating machine, the combination with a rotatable containerand separator therein, of an 'agitator "comprising a tube .having a flattened end, .said agitator beingfs'mounted that the end of said tube awayffr'om said flattened -,end dips -into tainer to deflect the same into said tube from which-it is directed by the flattened end of said tube against the inside surface of the container.

5. In a refrigerating machine, the combination with a rotatable container and separater therein, of a collector mounted to convey liquid from adjacent the periphery of said container. to said separator, and an agitator mounted to the rear of said collector,

adjacent the periphery of said con-v desire to secure Y said agitatorl being i liquid against the inside sur-` izo said agitator comprising a tube having a nozzle, the end of said tube away from said/1370 nozzle dipping into liquid adjacent the periphery of said container to defie'ct the same into said tube from which it is directed by said nozzie against the inside surface of the container.

6. in a refrigerating machine, the combination with a rotatablefconainer and separator therein, of a collector mounted to convey liquid. from adjacent the periphery of said container to said separator, and an agitator mounted to the rear of said collector,

saidagitator comprising a tube having a fiattened end, the end of said tube away from said flattened end dipping into liquid adjacent the periphery of said container to deiect the same into said tube from which it is directed by the Hattened end of said tube againsJ the inside surface of Jhe container.

in Witness whereof, have hereunto set my hand this 23rd day of November 1917. CLARK UHR. 

